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fbecd731de
xfs_zone_gc_write_chunk writes out the data buffer read in earlier using the same bio, and currenly looks at bv_offset for the offset into the scratch folio for that. But commit26064d3e2b("block: fix adding folio to bio") changed how bv_page and bv_offset are calculated for adding larger folios, breaking this fragile logic. Switch to extracting the full physical address from the old bio_vec, and calculate the offset into the folio from that instead. This fixes data corruption during garbage collection with heavy rockdsb workloads. Thanks to Hans for tracking down the culprit commit during long bisection sessions. Fixes:26064d3e2b("block: fix adding folio to bio") Fixes:080d01c41d("xfs: implement zoned garbage collection") Reported-by: Hans Holmberg <Hans.Holmberg@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hans Holmberg <Hans.Holmberg@wdc.com> Tested-by: Hans Holmberg <Hans.Holmberg@wdc.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.